Introduction The newest kind band which is a smart fitness wristband take care your active and sleep more carefully ,make you understand daily energy consumption and health status. you just need install a APP APK in your computer and synchronize health data(No bluetooth ,connect to computer for data storage Specification Size: 255 * 16 * 9.2mm (for wrist circumference as 120-195mm crowd) Display: LED Display Data transmission: USB Port Data Memory: can store 120 hours of continuous pedometer data Step number display: 0-9999 Steps Battery life: charge and discharge times, >300 times Power supply voltage: DC=5V Features: 1)100% Brand new and high quality 2)With 3D pedometer, can count your steps more accurately 3)Records steps, distance and calories burned 4)Shows the real-time temperature for you 5)Monitors how long and how well you sleep 6)Silent vibration alarm reminder, convenient to use 7)Comfortable to wear Package included 1 x Smart Bracelet 1 x USB Charger 1 x English User Manual